Gemini North and Gemini South Capture the Fading Light of SN 2025kg (IMAGE)

Association of Universities for Research in Astronomy (AURA)

Gemini North and Gemini South Capture the Fading Light of SN 2025kg

Caption

This sequence of images shows the fading light of the supernova SN 2025kg, which followed the fast X-ray transient EP 250108a, a powerful blast of X-rays that was detected by Einstein Probe (EP) in early 2025. Using a combination of telescopes, including the International Gemini Observatory, funded in part by the U.S. National Science Foundation and operated by NSF NOIRLab, and the SOAR telescope at Cerro Tololo Inter-American Observatory in Chile, a Program of NSF NOIRLab, a team of astronomers studied the evolving signal of EP 250108a/SN 2025kg to uncover details about its origin. Their analysis reveals that fast X-ray transients can result from the ‘failed’ explosive death of a massive star.

Credit

International Gemini Observatory/NOIRLab/NSF/AURA Acknowledgment: PI: J. Rastinejad (Northwestern University) Image processing: J. Miller & M. Rodriguez (International Gemini Observatory/NSF NOIRLab), M. Zamani (NSF NOIRLab)

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